added some prints to correspond to the readme example

src/main.rs

@@ -247,6 +247,8 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let world: world::World = parse_config(raw_conf, &mut robot_pool)?;
     let mut hash: HashMap<robot::Position, u32> = HashMap::new();
     create_hash_map(&robot_pool, &mut hash);
+    println!("World {{ x_max = {}; y_max = {} }}", world.x, world.y);
+    robot::print_robots(&robot_pool);
     println!("Initial state");
     println!("==============");
     display_grid(&world, &robot_pool, &hash);

src/robot.rs

@@ -77,6 +77,27 @@ pub fn is_piouff(r: &Robot) -> bool {
     false
 }
 
+/// Print robots id, position and instructions.
+pub fn print_robots(robot_pool: &Vec<Robot>) {
+    println!("Robots [");
+    for r in robot_pool {
+        println!(
+            "{{ id = {}, x = {}; y = {}; orientation: {}, instructions: {:?}, }},",
+            r.id,
+            r.p.x,
+            r.p.y,
+            match r.o {
+                Orientation::N => "Norts",
+                Orientation::S => "South",
+                Orientation::E => "East",
+                Orientation::W => "West",
+            },
+            r.i
+        );
+    }
+    println!("]");
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;